ADAPTIVE CONTROL OF HOT ISOSTATIC PRESSING (HIP) FOR METAL MATRIX COMPOSITE FABRICATION

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: N/A
Agency Tracking Number: 27493
Amount: $300,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1995
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Scientific Systems Company
500 W Cummings Park Ste 3950, Woburn, MA, 01801
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Raman K Mehra
 (617) 933-5355
Business Contact
Phone: () -
Research Institution
N/A
Abstract
FABRICATION OF METAL MATRIX COMPOSITES (MMC) REQUIRES THE USE OF SOPHISTICATED MANUFACTURING PROCESSES. ONE SUCH PROCESS IS HOT ISOSTATIC PRESSING (HIP) WHICH IS BECOMING A KEY TECHNOLOGY FOR CONSOLIDATING MMC AIRFRAME STRUCTURAL PANELS FOR ADVANCED AIRCRAFT. THE OBJECTIVE IS TO DEVELOP A HIERARCHICAL TWO-LEVEL ADAPTIVE OPTIMIZING CONTROLLER USING TECHNIQUES OF MODERN CONTROL THEORY, SYSTEM IDENTIFICATION, AND NEURAL NETWORKS. THE LEVEL 2 CONTROLLER MINIMIZES THE ULTIMATE COST PER UNIT OF PRODUCTION AND THE LEVEL 1 CONTROLLER REGULATES THE HIP PROCESS TO ACHIEVE OPTIMAL TEMPERATURE AND PRESSURE PROFILES DICTATED BY THE LEVEL 2 CONTROLLER. RESEARCH INCLUDES: (1) A STATE-OF-THE-ART SURVEY, (2) IDENTIFICATION OF LEVEL 1 PROCESS MODELS FROM REAL DATA, (3) THE DESIGN OF AN ADAPTIVE MODEL PREDICTIVE CONTROLLER (MPC), (4) TESTING OF THE MPC CONTROLLER, AND (5) DEVELOPMENT OF ARCHITECTURE FOR THE LEVEL 2 CONTROLLER.

* information listed above is at the time of submission.

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